Log Message:
Update to 1.15:

Changes in version 1.15:

Lziprecover can now repair multi-member files with up to one byte error
per member, without having to split them first.

Lziprecover can now merge multi-member files without having to split
them first even if some copies have the header and the trailer damaged.

The chapters "Repairing files", "Merging files" and \ 
"Unzcrash" have been
added to the manual.